Krzysztof Tomasiewicz Krzysztof Tomasiewicz

Dr. Krzysztof Tomasiewicz Krzysztof Tomasiewicz


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2020 in Expert Review of Anti-infective Therapy
Verified
Journal Article
Closed access
KTKrzysztof Tomasiewicz Krzysztof Tomasiewicz
Krzysztof Tomasiewicz Krzysztof Tomasiewicz
APAnna Piekarska
Anna Piekarska
JSJustyna Stempkowska-Rejek
Justyna Stempkowska-Rejek
SSSylwia Serafińska
Sylwia Serafińska
AGAleksandra Gawkowska
Aleksandra Gawkowska
Robert FlisiakRobert Flisiak
Robert Flisiak
Tocilizumab, an inhibitor of the interleukin-6 receptor, may decrease the inflammatory response and control the symptoms of severe coronavirus disease 2019 (COVID-19), but the evidence is scarce. T...

27 June 2020 in Expert Review of Anti-infective Therapy
Verified
Journal Article
Closed access
JJJerzy Jaroszewicz
Jerzy Jaroszewicz
MPMałgorzata Pawłowska
Małgorzata Pawłowska
KSKrzysztof Simon
Krzysztof Simon
Dorota Zarębska-MichalukDorota Zarębska-Michaluk
Dorota Zarębska-Michaluk
BLBeata Lorenc
Beata Lorenc
Robert FlisiakRobert Flisiak
Robert Flisiak
The aim of the study was to analyze the prevalence and clinical characteristics of HCV/HBV coinfection and to evaluate the rate of HBV-reactivation during anti-HCV therapy in a large real-world stu...

3 March 2021 in Liver International
Verified
Journal Article
Closed access
PDF file
AKAleksandra Berkan Kawinska
Aleksandra Berkan Kawinska
APAnna Piekarska
Anna Piekarska
EJEwa Janczewska
Ewa Janczewska
BLBeata Lorenc
Beata Lorenc
MTMagdalena Tudrujek-Zdunek
Magdalena Tudrujek-Zdunek
Robert FlisiakRobert Flisiak
Robert Flisiak

6 September 2019 in British Journal of Biomedical Science
Verified
Journal Article
Closed access
MŁMariusz Łucejko
Mariusz Łucejko
KTKrzysztof Tomasiewicz Krzysztof Tomasiewicz
Krzysztof Tomasiewicz Krzysztof Tomasiewicz
AOA Olczak
A Olczak
MTMagdalena Tudrujek-Zdunek
Magdalena Tudrujek-Zdunek
WHW Halota
W Halota
Robert FlisiakRobert Flisiak
Robert Flisiak
Background: Chronic hepatitis C is a major public health problem around the world. In monitoring treatment efficacy, although costly and labour-intensive methods of molecular biology are often used, much cheaper and technically easier serological methods evaluating the concentration of HCV core antigen in serum are available. We evaluated HCVcAg quantification as a possible assessment of the treatment efficacy instead of HCV RNA quantification. Methods: We collected 514 serum samples from treated HCV infected patients. Quantitative evaluation of HCV RNA and HCVcAg was carried out before treatment, at the end of treatment, and at least 12 weeks following treatment termination. HCV RNA was determined by automated assay (Roche COBAS) and HCVcAg quantitation with ARCHITECT ci8200 analyser. Results: There was a significant correlation between HCVcAg and HCV RNA concentrations at baseline and follow-up visits, but not at the end of treatment. Among samples collected before the treatment, at the end of treatment and follow-up visit, concordance of HCV RNA and HCVcAg reached level of 98.1%, 98.9% and 98.7%, respectively. Diagnostic sensitivity, specificity, positive and negative predictive values of HCVcAg detection were >97%. Conclusions: HCVcAg measurement could be an alternative for determining HCV treatment efficacy after chemotherapy and could be an option in the diagnosis of HCV infection.

16 September 2021 in Annals of Agricultural and Environmental Medicine
Verified
Journal Article
Open access
ARAgnieszka Pokora - Rodak
Agnieszka Pokora - Rodak
JKJoanna Krzowska-Firych
Joanna Krzowska-Firych
KTKrzysztof Tomasiewicz Krzysztof Tomasiewicz
Krzysztof Tomasiewicz Krzysztof Tomasiewicz
Introduction: Epidemiological data indicate that one-third of the world’s population have serological markers of hepatitis B virus infection. Hepatic steatosis is often observed in patients with chronic liver diseases. The exact mechanisms of hepatic steatosis progression and the efficacy of...

19 June 2020 in Annals of Agricultural and Environmental Medicine
Verified
Journal Article
Open access
ADAnna Dworzańska
Anna Dworzańska
MTMagdalena Tudrujek-Zdunek
Magdalena Tudrujek-Zdunek
JMJerzy Mosiewicz
Jerzy Mosiewicz
LPLech Panasiuk
Lech Panasiuk
KTKrzysztof Tomasiewicz Krzysztof Tomasiewicz
Krzysztof Tomasiewicz Krzysztof Tomasiewicz
Introduction: Diagnostic procedure in Coronavirus Disease 2019 (COVID-19) is based mainly on performing real-time-reverse transcription-polymerase chain-reaction (RT-PCR), which has been accepted as the gold standard method. In some cases, such as mutations of the SARS-CoV-2 genome, variable...